rayzor

annotate src/modeller.cc @ 14:a9a948809c6f

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starting the renderer screen, plus misc stuff
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 13 Apr 2014 08:06:21 +0300
parents d94a69933a71
children be616b58df99
rev   line source
nuclear@12 1 #include <stdio.h>
nuclear@9 2 #include <string.h>
nuclear@9 3 #include <assert.h>
nuclear@9 4 #include "modeller.h"
nuclear@9 5 #include "min3d.h"
nuclear@9 6 #include "rayzor.h"
nuclear@9 7 #include "scene.h"
nuclear@12 8 #include "keyb.h"
nuclear@14 9 #include "scrman.h"
nuclear@14 10 #include "logger.h"
nuclear@9 11
nuclear@9 12 struct ModellerImpl {
nuclear@9 13 int mx, my;
nuclear@9 14 float cam_theta, cam_phi, cam_dist;
nuclear@9 15
nuclear@9 16 struct m3d_image rbuf;
nuclear@9 17
nuclear@9 18 bool bnstate[8];
nuclear@9 19 int prev_x, prev_y;
nuclear@9 20 };
nuclear@9 21
nuclear@9 22 static void draw_grid(float size, float spacing);
nuclear@9 23
nuclear@9 24 Modeller::Modeller()
nuclear@9 25 {
nuclear@9 26 set_name("modeller");
nuclear@9 27 }
nuclear@9 28
nuclear@9 29 Modeller::~Modeller()
nuclear@9 30 {
nuclear@9 31 shutdown();
nuclear@9 32 }
nuclear@9 33
nuclear@9 34 bool Modeller::init()
nuclear@9 35 {
nuclear@9 36 mod = new ModellerImpl;
nuclear@9 37 memset(mod, 0, sizeof *mod);
nuclear@9 38
nuclear@9 39 mod->cam_phi = 25;
nuclear@9 40 mod->cam_dist = 5;
nuclear@9 41
nuclear@9 42 m3d_init();
nuclear@9 43 mod->rbuf.pixels = fb_pixels;
nuclear@9 44 mod->rbuf.xsz = fb_width;
nuclear@9 45 mod->rbuf.ysz = fb_height;
nuclear@9 46 m3d_set_buffers(&mod->rbuf, 0);
nuclear@9 47
nuclear@9 48 m3d_matrix_mode(M3D_PROJECTION);
nuclear@9 49 m3d_load_identity();
nuclear@9 50 m3d_perspective(50.0, (float)fb_width / (float)fb_height, 0.5, 500.0);
nuclear@9 51
nuclear@9 52 m3d_enable(M3D_CULL_FACE);
nuclear@9 53 return true;
nuclear@9 54 }
nuclear@9 55
nuclear@9 56 void Modeller::shutdown()
nuclear@9 57 {
nuclear@9 58 if(mod) {
nuclear@9 59 m3d_shutdown();
nuclear@9 60
nuclear@9 61 delete mod;
nuclear@9 62 mod = 0;
nuclear@9 63 }
nuclear@9 64 }
nuclear@9 65
nuclear@9 66 void Modeller::draw() const
nuclear@9 67 {
nuclear@9 68 m3d_clear(M3D_COLOR_BUFFER_BIT);
nuclear@9 69
nuclear@9 70 m3d_matrix_mode(M3D_MODELVIEW);
nuclear@9 71 m3d_load_identity();
nuclear@9 72 m3d_translate(0, 0, -mod->cam_dist);
nuclear@9 73 m3d_rotate(mod->cam_phi, 1, 0, 0);
nuclear@9 74 m3d_rotate(mod->cam_theta, 0, 1, 0);
nuclear@9 75
nuclear@9 76 draw_grid(10.0, 1.0);
nuclear@9 77
nuclear@9 78 scene->draw();
nuclear@9 79 }
nuclear@9 80
nuclear@9 81
nuclear@9 82 static void draw_grid(float size, float spacing)
nuclear@9 83 {
nuclear@9 84 int num_lines = size / spacing;
nuclear@9 85 float dist = size / 2.0;
nuclear@9 86
nuclear@9 87 m3d_disable(M3D_LIGHTING);
nuclear@9 88
nuclear@9 89 m3d_begin(M3D_LINES);
nuclear@9 90 m3d_color(0.4, 0.4, 0.4);
nuclear@9 91
nuclear@9 92 float x = -dist;
nuclear@9 93 for(int i=0; i<=num_lines; i++) {
nuclear@9 94 if(i != num_lines / 2) {
nuclear@9 95 m3d_vertex(-dist, 0, x);
nuclear@9 96 m3d_vertex(dist, 0, x);
nuclear@9 97 m3d_vertex(x, 0, -dist);
nuclear@9 98 m3d_vertex(x, 0, dist);
nuclear@9 99 }
nuclear@9 100 x += spacing;
nuclear@9 101 }
nuclear@9 102 m3d_end();
nuclear@9 103
nuclear@9 104 m3d_begin(M3D_LINES);
nuclear@14 105 m3d_color(0.8, 0, 0);
nuclear@9 106 m3d_vertex(-dist, 0, 0);
nuclear@9 107 m3d_vertex(dist, 0, 0);
nuclear@14 108 m3d_color(0.1, 0.3, 0.8);
nuclear@9 109 m3d_vertex(0, 0, -dist);
nuclear@9 110 m3d_vertex(0, 0, dist);
nuclear@9 111 m3d_end();
nuclear@9 112 }
nuclear@9 113
nuclear@9 114
nuclear@9 115 void Modeller::handle_keyboard(int key, bool press)
nuclear@9 116 {
nuclear@9 117 if(press) {
nuclear@9 118 switch(key) {
nuclear@12 119 case 'q':
nuclear@12 120 quit_app();
nuclear@12 121 break;
nuclear@12 122
nuclear@9 123 case 27:
nuclear@12 124 scene->clear_selection();
nuclear@12 125 break;
nuclear@12 126
nuclear@12 127 case '\t':
nuclear@12 128 {
nuclear@12 129 int s = scene->get_selection();
nuclear@12 130 if(s >= 0) {
nuclear@12 131 s = (s + 1) % scene->get_node_count();
nuclear@12 132 scene->clear_selection();
nuclear@12 133 } else {
nuclear@12 134 s = 0;
nuclear@12 135 }
nuclear@12 136 scene->select(s);
nuclear@12 137 }
nuclear@9 138 break;
nuclear@9 139
nuclear@14 140 case 'r':
nuclear@14 141 case 'R':
nuclear@14 142 if(kb_isdown(KB_ALT) || kb_isdown(KB_CTRL)) {
nuclear@14 143 Screen *rs = get_screen("renderer");
nuclear@14 144 if(rs) {
nuclear@14 145 activate_screen(rs);
nuclear@14 146 } else {
nuclear@14 147 printlog("failed to find renderer screen!\n");
nuclear@14 148 }
nuclear@14 149 }
nuclear@14 150 break;
nuclear@14 151
nuclear@9 152 default:
nuclear@9 153 break;
nuclear@9 154 }
nuclear@9 155 }
nuclear@9 156 }
nuclear@9 157
nuclear@9 158 void Modeller::handle_mbutton(int bn, bool press, int x, int y)
nuclear@9 159 {
nuclear@9 160 mod->bnstate[bn] = press;
nuclear@9 161 mod->prev_x = x;
nuclear@9 162 mod->prev_y = y;
nuclear@9 163 }
nuclear@9 164
nuclear@9 165 void Modeller::handle_mmotion(int x, int y)
nuclear@9 166 {
nuclear@9 167 int dx = x - mod->prev_x;
nuclear@9 168 int dy = y - mod->prev_y;
nuclear@9 169 mod->prev_x = x;
nuclear@9 170 mod->prev_y = y;
nuclear@9 171
nuclear@12 172 if(kb_isdown(KB_ALT) || kb_isdown(KB_CTRL)) {
nuclear@12 173 if(mod->bnstate[0]) {
nuclear@12 174 mod->cam_theta += dx * 0.5;
nuclear@12 175 mod->cam_phi += dy * 0.5;
nuclear@9 176
nuclear@12 177 if(mod->cam_phi < -90) mod->cam_phi = -90;
nuclear@12 178 if(mod->cam_phi > 90) mod->cam_phi = 90;
nuclear@12 179 }
nuclear@12 180 if(mod->bnstate[1]) {
nuclear@12 181 mod->cam_dist += dy * 0.1;
nuclear@12 182 if(mod->cam_dist < 0) mod->cam_dist = 0;
nuclear@12 183 }
nuclear@9 184 }
nuclear@9 185 }